National Science Education Standards addressed

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Motion
B.2.a. An object's motion
  • is described by its position, direction of motion, and speed
  • can be measured and shown on a graph



Forces
B.2.b. An object will move in a straight line at a constant speed unless a force acts on it


B.2.c. If more than one force acts on an object
  • the forces can act together
  • the forces can act against each other depending on the size and direction of the forces